Apps similar to Loupe Extension include Google Lighthouse, which is free and open source. Other options are Wave (accessibility tool), Koa11y, Statable WCAG Checker and Kontrast. You can choose from more than 10 Website Audit Tools like Loupe Extension for the web, Mac, Windows, Linux and Chrome OS.
Lighthouse is an open-source, automated tool for improving the quality of web pages. You can run it against any web page, public or requiring authentication. It has audits for performance, accessibility, progressive web apps, SEO and more.
United States
WAVE is a visual web accessibility analysis tool that evaluates web accessibility based on the Web Content Accessibility Guidelines (WCAG).
Koa11y is a cross-platform desktop application for finding accessibility issues on public web pages. Simply enter a page's url and the select the standards format (Section 508, WCAG 2.0) and click Run. The app generates an HTML page detailing test results.
Free browser extension that runs axe-core on the page you are viewing and lists WCAG 2.0/2.1/2.2 A and AA issues in a side panel, each with the rule behind it and a link to the fix.
Netherlands
EU
Kontrast is a color contrast checker that tells you if your color combinations are distinct enough to be readable and accessible. It is part of the Plasma Mobile app collection.
GermanyEU
Colour Contrast Analyser allows you to evaluate the color visibility and contrast of foreground/background color combinations. It provides an initial pass/fail assessment against WCAG 2.0 color contrast success criteria.
Built on the world’s most popular accessibility testing library, axe-core. Deque’s suite of axe tools offers full coverage for your testing and compliance needs.
WhoCanUse is a tool that brings attention and understanding to how color contrast can affect different people with visual impairments.
Test & monitor your websites and documents against WCAG 2.1 and EN 301 549. Accessibility Cloud offers automatic and manual accessibility tests, monitoring and compliance management within the same powerful platform.
SwedenEU
A11yied is an automated accessibility compliance testing platform that helps developers and organizations identify accessibility issues across their websites.
